mirror of https://github.com/doitsujin/dxvk
40 lines
601 B
C++
40 lines
601 B
C++
#pragma once
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#include <mutex>
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namespace dxvk {
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/**
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* \brief Lazy-initialized object
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*
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* Creates an object on demand with
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* the given constructor arguments.
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*/
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template<typename T>
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class Lazy {
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public:
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template<typename... Args>
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T& get(Args... args) {
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if (m_object)
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return *m_object;
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std::lock_guard lock(m_mutex);
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if (!m_object) {
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m_object = std::make_unique<T>(
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std::forward<Args>(args)...);
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}
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return *m_object;
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}
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private:
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dxvk::mutex m_mutex;
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std::unique_ptr<T> m_object;
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};
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} |